https://www.cnet.com/news/qled-vs-oled-samsung-tv-and-lg-tv-2019-comparison/

But it's not the pinnacle of picture quality. That honor goes to OLED TVs.

Based on the last few years of CNET's side-by-side comparison reviews, LG OLED TVs have all delivered better overall image quality than Samsung QLED TVs. The latest example in 2018 pitted Samsung's Q9 against LG's B8. The LG won, even though it costs less. The Q9 is still an excellent performer however, and delivers the best non-OLED image I tested in 2018 -- but not because of QLED technology.